** This article has pictures from the ST205, but the procedure is similar for all the
GT4s **

Disclaimer

This article is intended as a helpful guide and shows how I replaced the fuel pump. If you are in any doubt, or not
qualified, do not undertake this maintenance, consult a qualified mechanic. The fuel pump is an important vehicle component, failure to change this in accordance with the relevant manufacturers and/or procedures and/or instructions can lead to severe damage or injury. The author or the GT4 Drivers Club can not be held responsible for any loss or damage resulting from use of this article.

Safety

When working on a car always use the appropriate safety equipment, chock the wheels to prevent the vehicle from moving. When working underneath a raised vehicle always use axle stands.

Special Precautions

Disconnect battery and ensure NO naked flames
or sources of ignition are present close by. It is wise to have a decent sized
foam or dry powder fire extinguisher on hand as well.

Procedure

Inside the boot, remove the metal access panel and white plastic conduit cover and disconnect the two multi plugs

Remove fuel filler / inner arch guard

... then remove the fuel tank cover. 6 bolts and one panel clip IIRC

The removed cover

Which allows full access to the tank

Remove the 4 screws holding the filler flap in place

.... and simply carefully pull the assembly to one side

Filler tube is not secured anywhere else so no more clamps etc to worry about there.

Next, remove hose clamps on the return and breather pipes and remove hoses (have
a container ready to catch and fuel which may leak out)...

You can then undo the fuel feed pipe at the union shown below

With something below the tank to take the weight when it's freed, undo the nuts on the two 'straps', holding the tank in place...